11489520 has 120 divisors (see below), whose sum is σ = 41475024. Its totient is φ = 2623488.

The previous prime is 11489507. The next prime is 11489521. The reversal of 11489520 is 2598411.

It is a happy number.

11489520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×11489520³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11489521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11272 + ... + 12248.

Almost surely, 2^11489520 is an apocalyptic number.

11489520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11489520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20737512).

11489520 is an abundant number, since it is smaller than the sum of its proper divisors (29985504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11489520 is a wasteful number, since it uses less digits than its factorization.

11489520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 11489520 is about 3389.6194476667. The cubic root of 11489520 is about 225.6492850424.

The spelling of 11489520 in words is "eleven million, four hundred eighty-nine thousand, five hundred twenty".